Road working machine



Jan. 9, 1940. E. SCHEUNEMANN ROAD WORKING MACHINE Filed Dec. 6, '1937 4Sheet-Sheet 1 2 INVENTQR. 4 0 H 0 i Iva/v ATTORNEY.

Jan. 9, 1940. E. SCHEUNEM'ANN ROAD WORKING MACHINE Filed Dec. 6, 1937 4Sheets-Sheet 2 IN: l||

Jan. 9, 1940.

v E. SCHEUNEMANN ROAD WORKING MACHINE Filed Dec. 6, 1937 4 Sheets-Sheet4 [91/42 .0 S c/wax INVENTOR. i/ yfl/v/v side rails.

of sweeping the hard surfaced road and of com Patented Jan. 9, 1940UNITED STATES PATENT OFFICE."

ROAD WORKING MACHINE Edward Scheunemann, Mount Clemens, Mich.Application December C, 1937, Serial No. 178,322

9 Claims (ohm-160) I i chine mounted on an axle intermediate the endsthereof, the axle having a bend near each spindle thereof whereby it maybe rotated to lower and to elevate the framethereof, the lower positionbeing its working .position and its upper position being its carrying ortransport position.

Another object is to provide a multiplicity of possible positions whichthe frame may assume with respect to the roadway in order to accommodateitself to various types of work, these positions being affected by theprovision of multiple rotative adjustment of the axle with respect tosaid frame.

A further object is to provide a draw member pivotally attached to theframe in order that the cutters may freely' jdrag along the ground incombination with means for rigidifying this member with respect to theframe when in carrying position. A specific object is to provide amultiplicity of positions in which the rigidifying means may functionwhereby the frame may be made to travel horizontally regardless ofwhether the vehicle by which it is to be transported is relatively highor low.

Another object is to provide blade holders and blades therefor of suchconstruction that they may be shifted longitudinally'of their holders inorder to alter their positions with respect to the frame side railsthereby lendingthemselves to use for scraping or for shoulder forming.

Another object is 'to provide .means for adjusting at least one of theseblade holders'longitudinally of at least one frame. side rail whereby itmay be given the most advantageous position for the type of work. to beperformed."

A still further object is to provide a detachable trailer blade holderand blade universally connected near .therear end of one of the frameThis trailer blade has the function pleting the shoulder formingoperation.

Another object is to provide an improved blade having two cutting edges,one of the edges being straight, the other being serrated in order tomore readily cut into hard roads such as oil hardened earth roads. Thestraight edge may then be used for planing. 7

Other objects and advantages will'hereinafter become more apparent asreference is had to the accompanying drawings wherein:

Fig. 1 is a plan view of my improved machine with the trailer blade intransport position,"

Fig. 2 is a vertical section taken along the line 2-.2 of Fig. l,

Fig. 3 is a view similar to Fig. 2 with the scraper blades inloweredposition, Fig. 4 is a vertical section taken along line 4-4 ofFig. 1, 10

Fig; 5 is a view similar to that of Fig. 2 showing the trailer blade inoperating'position,

Fig. 6 is a vertical section taken along the line 66 of Fig. 1' with thecutter blade in road planing position, v I V Fig. 7 is a section similarto Fig. 6 with the blade in shoulder forming position,

Fig. 8 is a vertical section taken along the line 8-8ofFig.l,

Fig. 9 is similar to Fig. 8 with one blade sectionremoved, I

Fig. 10 isa vertical section taken along the line 10-40 of Fig. 5, i

'Fig.11 is a vertical section taken along the line I|--Il of Fig. l, 1 5Fig, 12 is a view similar to Fig; 11 with the blade shifted to analternate position, and -"Figs. 13 and 14 are diagrammatic plan views ofthe two arrangements of blades, for use asa I road planer or as ashoulder forming machine, 30

respectively.

. More particularly l indicates a frame having right and leftside rails2 and 3. Secured beneath the side rails. bythe bolts '4 are bladeholders 5, 6 and 1 arranged respectively nonparallel. The blades 8 and 9are respectively attached to the holders 5 and 1, the holder 6 beingequipped with two blade sections Ill and II.

. Journ'alled in the side rails 2 and 3 is an axle l2 bent "at 13.neareach end and terminating in spindles upon which the wheels I4 arerotatably mounted.

Theframe with itscutter blades is balanced on its journals in suchmanner that it is slightly heavy toward the front end thereof.Intermediatetheside rails Z and 3 two wheels I 5 are fixedly secured tothe axle [2; These wheels are serrated at IE to provide a plurality ofgear teeth for a plunger ll spring pressed at I 8 and slidably mountedin an arm l9 J'ournalled on the axle l2 between the wheels IS. Theplunger IT, by falling into a space between two teeth l6, rigiditiesthearm l9 with .respect to the axle so that upon rotation thereof v theaxle may be caused to rotate-tpusswinging thearm [3. It

may thus be seen in Fig. 2 that if the axle I2 is rotated clockwise theframe I will be elevated whereas rotation of the axle in acounterclockwise direction will cause the depression of the frame ltoward the ground until contact is established between the ground andthe blades 8, 9, EB and H.

A draw member 2! the front end 21 of which is adapted for attachmentto'a truck, a tractor or other prime mover is pivotally connected at 22to the side rails 2 and 3 so that the frame with its cutters may bedragged along the ground. In order to transport the frame upon elevationthereof by consequence of the rotation of the axle I2 as previouslydescribed, the draw member 20 may be rigidified with respect to the siderails 2 and 3 by the insertion of pins 23 through an opening in eachrail of the members 20 which align with any one of a plurality ofvertically spaced holes '24 in a bracket 25 arising from the front endof the side rails 2 and 3 at their points of attachment to the crossrail M. This adjustment permits an angularity between the drawbar andthe frame rails in order that the frame may be maintainedhorizontalwhile being transported regardless of variations in'height of thevehicle to which it is attached. Arising from the cross member 26 is arack 25 having a multiplioity of fingers 2? extending outwardlytherefrom in vertically spaced relation to serve as means for retainingthe arm is in any given position. Thus, with the plunger I! inengagement in the manner illustrated in Fig, 2 .the arm may be made toengage any one of a number of the fingers 21 to adjust the height of theframe I with respect to the ground, the selection of position beingvariable by a small amount in order to accommodate the blades to theparticular type of work for which they are called upon.

Fig. 3 shows the arm [9 being swung to vertical'position in which eventthe wheels [4 are elevated entireiy from the ground and consequently addtheir weight to the weight of the frame. By moving the finger H from theposition shown in Fig. 3 to the last notch Ifia in the wheel I5 the arml9 may be made to engage a finger 2! thus retaining the wheels in theposition illustrated. Ifthe finger ll be moved to the other end of thenotch portion into engagement with the notch itb the arm I9 may be madeto engage one of the fingers 27 and retain the-frame in transportposition. Between these two positions numerous adjustments areadvantageous depending on the type of work to be done.

Fig. 1 illustrates the machine with the various blades so arranged thatthe machine is adapted for use as a scraper or planer. The front blade 8terminates well inside the left side rail 3, the blade Hi extends Welloutwardly of the side rail 3 and the blade 9 also extends outwardly ofthe frame rail 3 but to a less extent than the blade is. This is theconventional arrangement of lades for this type work. In order toconvert the machine into a shoulder forming machine the blade 8 is movedlongitudinally of its blade holder for an amount such that it terminatesimmediately below the inside edge of the left side rails 3, the blade H]is removed leaving only the blade H on the inside blade holder Sand theblade 9 is moved to a position beneath the center of the left side rail3. The blade holder 1 is shifted in position so that it will assume theposition illustrated in dotted line la, the posi- Fig. 14. This requiresthat the bolts 4 which attach the holder 1 to the rail 2 be removed andthat two of them be replaced for engagement with the holes 4a and thatthe bolts 4 in the member 3 be removed and that two of them be replacedto pass through the holes 4b. Due to the change in angularity of themember '1 with respect to the side rails only two of the bolts will bereplaced at each side rail.

In order to permit the shifting of the blade 8 with respect to theholder 5 the blade is secured to the holder by bolts 28 uniformly spacedso that the blade may be shifted a distance equal to one, or a pluralityof links between both holes. Thus, I have illustrated three differentmeans in the three different instances for changing the position ofthe'left hand end of the blade with respect to the side rails 3.Obviously all blades might be shifted according to the plan in eitherone of the three diiferent ways illustrated.

The illustration of the blades in their two positions of planing and ofshoulder formation is illustrated in Figs. 13 and 14 wherein it is seenthat the object of the front planar blade is to scrape the road surfaceand also to move a portion of the dirt laterally to the left, where itis taken by the intermediate blade and moved transversely of the road,this blade dumping a residue onto the final blade 9, this final bladebeing slightly elevated with respect to the other two blades by virtueof the fact that the frame normally tilts forward. In Fig. 14 thearrangement shows the front blade in position for planing with theresidue being dumped at the edge of a hard surfaced road 29, theintermediate blade acting as a scraper for delivering a quantity ofearth to the rear blade 9 which is now turned at such an angle that itaccepts all the earth delivered by the blade II and transports a certainquantity of it over to the shoulder of the road 29 and actually upon theroad 29. In this manner, the operator may be certain that the shouldersimmediately adjacent the road 29 are completely built and it remainsthereafter to scrape or sweep the road 29 of dirt which has been dumpedthereon by the blades 9. In order to accomplish this, I provide a reartrailer blade holder 36 having a blade 3| secured thereto, this bladenormally travelling at an angle such that it scrapes any dirt on theroad 29 off the side thereof in the direction of the newly formedshoulder. This holder 30 is attached to the left side rail 3 by means ofa pin 32 which fits in a slot 33 with sufficient play or looseness topermit a substantial universal motion between the holder and the siderail 3. The holder 30 is thus readily detachable from the side rails 3or it may be rotated about its pivot 32 through an angle ofsubstantially to a carrying position as illustrated in Figs. 1, 2 and 3.

The blades 8, 9, H], H and 3| are each constructed with two cuttingedges, one of the edges being straight whereas the other one is serratedas indicated at St. The straight surfaces are employed for ordinaryplaning or scraping work whereas the serrated edges are employed, forinstance, on earthen roads hardenedby oil applications and having manyholes therein. By pulling the machine over these holes with the serratedteeth for one or several times the earth is sufiiciently loosened at itssurface that when the blades are reversed and the machine then pulledthereover, a smooth surface results.

Various modifications maybe made without tion being illustrated in fulllines on the diagram departing from the spirit of my invention and 7 armto said axle for the rotation thereof through a substantial anglewhereby said-frame may be lowered into road working positionor elevatedto carrying position, said means being adjustable to vary therelationship between the arm and the cranks, and a rack bracket having aplurality of vertically spaced fingers each one of which is adaptedtoreceive and to retain said arm.

2. A road working machine comprising a frame having cutter bladestherebeneath and trans versely thereof, an axle upon which said frame isjournalled having crank ends and wheels journalled thereon, an armsecured to said axle for the rotation thereof through a substantialangle whereby said frame may be lowered into road working position orelevated to carrying position, and means for adjusting said armrotationally about said axle and for holding it relative to the axle indifferent angular relationships with the cranks.

3. A road working machine comprising a frame having cutter bladestherebeneath and transversely thereof, an axle upon which said frame isjournalled having crank ends and wheels journalled thereon, an armjournalled on said axle, a wheel adjacent said arms and fixedly securedon said axle having teeth formed on the periphery thereof, and a springpressed finger slidably mounted on said arm into engagement between anytwo of said teeth whereby said arm may be adjustably fixed to said axle.I

4. A road working machine comprising a frame having cutter bladestherebeneath and transversely thereof, an axle upon which said frame isjournalled having crank ends and wheels journalled thereon, an armsecured to said axle for the rotation thereof through a substantialangle whereby said frame may be lowered into road working position orelevated to carrying position, means for adjusting said arm rotationallyof said axle to any one of a plurality of positions, and selective meansfor retaining said arm in any one of a plurality of vertically spacedpositions with respect to said frame.

5. A road machine comprising a frame having a plurality of transverse,non-parallel blades secured therebeneath, and an auxiliary blade holderhaving a blade attached thereto pivotally connected to said frame to oneside of and near the rear end thereof for swinging movement with respectthereto, said frame and holder having interengaging portions restrictinglateral move-- ment of the holder relative to the frame.

6. Aroad working machine comprising a frame having a plurality oftransverse, non-parallel blades secured therebeneath, a holder for anauxiliary blade having ablade attached thereto, and hook meansdetachably securing-the holder to the rear end of one side rail of saidframe.

7. A road working'maohine comprising a frame having a plurality. oftransverse, non-parallel blades securedtherebeneath, said bladesterminating inwardly of the outside edge of the left side rail of saidframe,la trailerblade holder having a blade attached thereto, and hookmeans securing the holder to the rear end of said left side rail, saidtrailer blade extending to the left of the axis of said left side railby a substantial amount. I

8. A road working machine comprising a frame having a plurality oftransverse non-parallel blades secured therebeneath, said bladesterminating inwardly of the outside edge ,of the left side railofsaidframe, and a trailer blade holder having a blade attached theretoswingably secured to the rear end of said left side rail, said frame andholder having interengaging portions having a plurality of transverse,non-parallel blades secured therebeneath, said blades terminatinginwardly of the outside edge of the left side rail of said frame, and atrailer blade holder having a blade attached thereto secured to the rearend of said left side rail, said trailer extending to the left of theaxis of said left side rail by a substantial amount, said holder being'piv- 'oted on said side rail and swingable on its pivot through an arcof about to a carrying position. I

EDWARD SCHEUNEMANN.

